1 files changed, 67 insertions, 0 deletions
diff --git a/rename_db b/rename_db
new file mode 100755
index 0000000..eacff17
--- /dev/null
+++ b/rename_db
@@ -0,0 +1,67 @@
+#!/bin/bash
+# Copyright 2013 Percona LLC and/or its affiliates
+set -e
+if [ -z "$3" ]; then
+    echo "rename_db <server> <database> <new_database>"
+    exit 1
+fi
+db_exists=`mysql -h $1 -e "show databases like '$3'" -sss`
+if [ -n "$db_exists" ]; then
+    echo "ERROR: New database already exists $3"
+    exit 1
+fi
+TIMESTAMP=`date +%s`
+character_set=`mysql -h $1 -e "show create database $2\G" -sss | grep ^Create | awk -F'CHARACTER SET ' '{print $2}' | awk '{print $1}'`
+TABLES=`mysql -h $1 -e "select TABLE_NAME from information_schema.tables where table_schema='$2' and TABLE_TYPE='BASE TABLE'" -sss`
+STATUS=$?
+if [ "$STATUS" != 0 ] || [ -z "$TABLES" ]; then
+    echo "Error retrieving tables from $2"
+    exit 1
+fi
+echo "create database $3 DEFAULT CHARACTER SET $character_set"
+mysql -h $1 -e "create database $3 DEFAULT CHARACTER SET $character_set"
+TRIGGERS=`mysql -h $1 $2 -e "show triggers\G" | grep Trigger: | awk '{print $2}'`
+VIEWS=`mysql -h $1 -e "select TABLE_NAME from information_schema.tables where table_schema='$2' and TABLE_TYPE='VIEW'" -sss`
+if [ -n "$VIEWS" ]; then
+    mysqldump -h $1 $2 $VIEWS > /tmp/${2}_views${TIMESTAMP}.dump
+fi
+mysqldump -h $1 $2 -d -t -R -E > /tmp/${2}_triggers${TIMESTAMP}.dump
+for TRIGGER in $TRIGGERS; do
+    echo "drop trigger $TRIGGER"
+    mysql -h $1 $2 -e "drop trigger $TRIGGER"
+done
+for TABLE in $TABLES; do
+    echo "rename table $2.$TABLE to $3.$TABLE"
+    mysql -h $1 $2 -e "SET FOREIGN_KEY_CHECKS=0; rename table $2.$TABLE to $3.$TABLE"
+done
+if [ -n "$VIEWS" ]; then
+    echo "loading views"
+    mysql -h $1 $3 < /tmp/${2}_views${TIMESTAMP}.dump
+fi
+echo "loading triggers, routines and events"
+mysql -h $1 $3 < /tmp/${2}_triggers${TIMESTAMP}.dump
+TABLES=`mysql -h $1 -e "select TABLE_NAME from information_schema.tables where table_schema='$2' and TABLE_TYPE='BASE TABLE'" -sss`
+if [ -z "$TABLES" ]; then
+    echo "Dropping database $2"
+    mysql -h $1 $2 -e "drop database $2"
+fi
+if [ `mysql -h $1 -e "select count(*) from mysql.columns_priv where db='$2'" -sss` -gt 0 ]; then
+    COLUMNS_PRIV="    UPDATE mysql.columns_priv set db='$3' WHERE db='$2';"
+fi
+if [ `mysql -h $1 -e "select count(*) from mysql.procs_priv where db='$2'" -sss` -gt 0 ]; then
+    PROCS_PRIV="    UPDATE mysql.procs_priv set db='$3' WHERE db='$2';"
+fi
+if [ `mysql -h $1 -e "select count(*) from mysql.tables_priv where db='$2'" -sss` -gt 0 ]; then
+    TABLES_PRIV="    UPDATE mysql.tables_priv set db='$3' WHERE db='$2';"
+fi
+if [ `mysql -h $1 -e "select count(*) from mysql.db where db='$2'" -sss` -gt 0 ]; then
+    DB_PRIV="    UPDATE mysql.db set db='$3' WHERE db='$2';"
+fi
+if [ -n "$COLUMNS_PRIV" ] || [ -n "$PROCS_PRIV" ] || [ -n "$TABLES_PRIV" ] || [ -n "$DB_PRIV" ]; then
+    echo "IF YOU WANT TO RENAME the GRANTS YOU NEED TO RUN ALL OUTPUT BELOW:"
+    if [ -n "$COLUMNS_PRIV" ]; then echo "$COLUMNS_PRIV"; fi
+    if [ -n "$PROCS_PRIV" ]; then echo "$PROCS_PRIV"; fi
+    if [ -n "$TABLES_PRIV" ]; then echo "$TABLES_PRIV"; fi
+    if [ -n "$DB_PRIV" ]; then echo "$DB_PRIV"; fi
+    echo "    flush privileges;"
+fi